import logging

from django.db import models
from wagtail.admin.edit_handlers import FieldPanel, TabbedInterface, ObjectList, StreamFieldPanel
from wagtail.core.fields import StreamField
from wagtail.images.blocks import ImageChooserBlock

from book.blocks import TextBlock, BasicKnowledgeBlock, StudentEntryBlock
from core.wagtail_utils import StrictHierarchyPage

logger = logging.getLogger(__name__)


class ContentBlock(StrictHierarchyPage):
    class Meta:
        verbose_name = 'Inhaltsblock'
        verbose_name_plural = 'Inhaltsblöcke'

    contents = StreamField([
        ('text_block', TextBlock(icon='doc-full')),
        ('basic_knowledge', BasicKnowledgeBlock(icon='placeholder')),
        ('student_entry', StudentEntryBlock(icon='download')),
        ('image_block', ImageChooserBlock(icon='image')),
        ('task', TextBlock(icon='tick'))
    ], null=True, blank=True)

    type = models.CharField(
        max_length=100,
        choices=(
            ('plain', 'Normal'),
            ('yellow', 'Gelb'),
            ('green', 'Grün'),
            ('blue', 'Blau'),
        )
    )

    content_panels = [
        FieldPanel('title', classname="full title"),
        FieldPanel('type'),
        StreamFieldPanel('contents')
    ]

    settings_panels = [
        FieldPanel('slug')
    ]

    edit_handler = TabbedInterface([
        ObjectList(content_panels, heading='Content'),
        ObjectList(settings_panels, heading='Settings'),
    ])

    template = 'generic_page.html'

    parent_page_types = ['book.Chapter']